Spring-tension appliance for looms



Feb. 4, 1930. H. R. REIMARD -:T A;

SPRING TENSION APPLIANCE FOR LooMs Filed Feb. 2I 1929 l Patentedv Feb. 4, 1930 I UNITED STES PATENT f ,GF-FIIC HOWARD n. REIMABD ANDVAUGHANA. STARR, yor DANVIVLLE, 'rnNNsYLvANrA, AS- SrGNons 'ro SiAnR SILK COMPANY, iNonroRArED, onv DANVILLE, PENNSYLVANIA.

srnINefriENsroN APPLIANCE :son Looivrs f Application filed February 2, 1929. Serialy No.- 337,152.

This invention relates'broadly toa loose reed mechanism for looms and more particu-r` larly to an auxiliary accessory or spr-lng ten-A sion appliance which is made for cooperation with arelativ'ely stationarybatten frame and a swingably mounted cooperable reed frame which is carried thereby.

f Inforder to provide for the making of a closer fabric and a more uniform-texture and` to avoid imperfections, we have'evolved and" produced a Supplemental' or. auxiliary appliance in the form of an attachment which f compensates for lirregular .filling and also for/a lost pick caused by breaks and the loom is restarted, there willfbe an irregularltyin` the vspacing of the filler In` the ordinary'mechamsm used for the purpose mentioned the reed is Yso constructed that itwill always give or spring back a short distance in beating up the filling except when the filling breaks or. runsout in which case back and forth, thus ma k.l

it does not spring ing up for the lost pick.

WhatY weV do isto provide an attachment made for `connection wherein this bracket functions as a mounting for .an adjustable spring,and we rmake the spring with the tension producing arm, thus developing a device for maintaining a yconstant yspringl ktension against the reed frame to compensate for the Briefly described, the munang'is of vgeneral U-shaped'form'and isadapted to beVV rigidlyfastened to the hatten frame, and it, is provided with a novel manuallyadjusted axle and bushing arrangement which forms a hub around which the'tension spring is coiled, means being embodied in this arrangement whereby the tension ofthe'spring may be varied and maintainedin aidependable vmanner against lslipping'. In the drawings:

Figure lisa fragmentary end view of al kportion of the batten and reedframe to-V gether with the appliance associated with Ythe filling breaking or running out. .l\la'turally,Y when the filling defect and the regularities heretofore encountered.V f

these parts and4 assuming operative relation.

Figure 2 is a'vertical sectionalfview taken approximately uponthe plane of thel line Y 2-2 of Figure l. v

v vFigure 3 is a horizontal sectionalrviewgon an enlarged scale taken approximately upon the plane of the line 37-3' ofFigure 1.

v*Figure 4 isla cross sectional view through the spring anchoringbushing. 1

In the drawings the reference character 5 designates the, relatively stationary upright ofthe yhatten frame, and 6l designates `generally the pivotally or swingably mounted reed frame; i Y l The appliance comprises* thev` U-shaped brackets 7 which are rigidly bolted to the .bat-

ten frame One arm'8 as seen infFigure .3 is l formed with a square hole through which` one u end portion of the square shaft- 9 extends.

@This shaft includes a screw threaded reduced portion 10 carrying a binding nut 11.

On the opposite arm 12-is an outstanding toothed'segmentl with which a toothed disc like'fhead lll is cooperable. Thishead in` cludes thefcollar portion 1'5" pinned or otherwiserigidly fastened to the adjacent endof the shaft; This collar is madel into a nut `and adapted to be engaged by an ordinarywrench;V Y Interposed b etweenthearmsand surroundi ing the square shaft is a bushing including a A.cylindrical portion 16.KV This portion-16 is cylindricalonly on the exterior surface. j The Y bushing also includes an enlarged head vv.at` one end -fprovided with diametricallyY op posite notches' 17 in :which the inturne'd end 18 of the coiled tensioning spring extends.

The end '18,.v0f 'the springl may be fitted into j either of ther notches 17. The coiled rportions 19 surroundthe Ybushing and spacing anti-ff'v eo friction rings 20y are mounted onlthis portionY of the bushing andthe coilssurroundtliese Vrings; The spring,V as before stated, includes an arm y21having its lower end offset in Vaf;

Amanner to bear'a'gainst Vthe plate 22. on* the mounted vreed frame. The are# vsw-ingably rangement is such that the arm` maintainsa V constant yieldable pressure against the reed 1 frame. l K

l The particular refinement and distinguish Y able features of this arrangement the novel) means whereby the spring tension may be regulated in a manner to reduce friction on the coils and yet to maintain thev arm in a set position, whereby to permit it to function more ,accurately and in a more eficient and dependable manner.

F rom the `foregoing' description and drawings it will be seen that we have evolved and produced what is regarded as a mechanical achievement in the art beyond'similar tensioning devices for loose reed motions for looms. It is smooth in operation, positiveand dependable in action, efficient in performance in every way and susceptibleof fulfilling the requirements of an-invention of this class, in a most satisfactory manner;` Ity is thought that persons skilled in the art to which the invention relates willbe able to appreciate the advantages and features. Therefore, amore lengthy description is regardedunne'cessary.

Minor changes in shape, size, and rearrangement-of -parts comingwithin the field of invention claimed may be resorted to in actual practice if desired. v

I Iaving thus-described the invention, what we claim as new and desire to secure by Letters Patent is v l. I n a spring tension appliance for looms, a substantially U-shaped attaching bracket, the arms of` which are provided with opposite openings, a shaft extending rotatably and slidably through the openings of said arms, a binding nut ori-one end of the shaft, and coacting means` between the opposite end of the shaft and the adjacent arm for holding the shaft positively in adjusted position, a bushing splined on the shaft between the arms,a coiled spring surroundingand anchored to said bushing and confinedbetween said arms, said coiled spring including an extension forming the laterally offset pressure producing arm.

2. In a spring tension appliancev for looms, a substantially U-shaped-attaching bracket, the arms of which are VVprovided with opposite openings, a shaft extending-rotatably and slidably through the openings of said arms, a binding nut on one end of the shaft, and coacting means between the opposite end of the' shaft and the adjacent arm forholding the shaft positively in adjustedposition, a bushing splined on the shaft betweenthe arms, a coiled spring surrounding and anchored to said bushingsand confined between said arm, saidcoiled springincluding an eX'- tension forming the laterallyl odset pressure vproducing arm, said bushing including an external cylindrical portion, andV anti-frictionk rings surrounding the bushingl and confined withinthe coils of said spring.

3'. In a spring tension appliance forV looms, a-substantiallyV U-shaped attaching bracket,

yhaving its arms formed with opposed opennal annular toothed segment, a polygonal shaft extending slidably and rotatably through the openings in said arms and having one endscrew threaded, a binding' nut carried by said screw threaded end and cooperable with the-adjacent arm of the bracket, a toothed disc like element on. the opposite end of the shaft cooperable with said segment, and including a collar rigidly', fastened to the shaft and functioningas a wrench en-Y gaging nut, a bushing assemblyon the portion ofthe shaft between said arms and including spacing and anti-friction rings, a springanchored-at one end to said bushing and coiled around the bushing and' ring and having an extended laterallyxoii'set endfpnrtion ,forming'a pressure producing larm which is adaptedto bearV against a swingable reed frame..

In testimony f whereof we afx Y our signa;-

tures. Y v l VAUGHAN `A'. STARR. HOWARD n. Riemann;

ings, one arm being provided with anA exter- 

